PLOT (Porous Layer Open Tubular) columns are intended for the separation of compounds with very high vapor pressure (e.g., permanent gases and light hydrocarbons) without the need for cryogenic or sub-ambient cooling of the oven. PLOT column stationary phases are physically different than those of polysiloxanes and polyethylene glycols. PLOT stationary phases are porous particles that are attached to the inner wall of the capillary tubing using a binder or similar means. Compounds are separated based on their adsorption properties and other gas-solid surface interactions with the stationary phase.Agilent offers the most comprehensive line of PLOT columns for analysis of fixed gases, low molecular weight hydrocarbon isomers, volatile polar compounds, and reactive analytes such as sulfur gases, amines, and hydrides. In this presentation we will cover the modes of separation involved with PLOT columns and demonstrate a wide array of separations including permanent gases, branched and olefinic hydrocarbons, and sulfur compounds among others.
Presenter Information: Allen K. Vickers, Product Development Chemist, Agilent Technologies Inc.
